Advanced Endodontics of Westchester Invests in Laser Dentistry in White Plains, NY, Applies Low-Level Laser Therapy for Pain Relief Drs. Justin Kolnick, Kara Diamond, Randall Barton, Keith Hope and Bilal Chaudhry, respected endodontists, recently acquired the THOR dental laser and are now accepting new patients for gentle, leading-edge laser dentistry in White Plains and Mt.